Base | Representation |
---|---|
bin | 11101111010100011… |
… | …111100001011100001 |
3 | 10001220120100112011201 |
4 | 131322203330023201 |
5 | 1011240434403321 |
6 | 22431200441201 |
7 | 2214663051052 |
oct | 357243741341 |
9 | 101816315151 |
10 | 32121012961 |
11 | 12693524504 |
12 | 6285319201 |
13 | 304b92c45b |
14 | 17aa004729 |
15 | c7ee42291 |
hex | 77a8fc2e1 |
32121012961 has 2 divisors, whose sum is σ = 32121012962. Its totient is φ = 32121012960.
The previous prime is 32121012953. The next prime is 32121012977. The reversal of 32121012961 is 16921012123.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 28845625600 + 3275387361 = 169840^2 + 57231^2 .
It is an emirp because it is prime and its reverse (16921012123) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 32121012961 - 23 = 32121012953 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is not a weakly prime, because it can be changed into another prime (32121012941) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060506480 + 16060506481.
It is an arithmetic number, because the mean of its divisors is an integer number (16060506481).
Almost surely, 232121012961 is an apocalyptic number.
It is an amenable number.
32121012961 is a deficient number, since it is larger than the sum of its proper divisors (1).
32121012961 is an equidigital number, since it uses as much as digits as its factorization.
32121012961 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1296, while the sum is 28.
The spelling of 32121012961 in words is "thirty-two billion, one hundred twenty-one million, twelve thousand, nine hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •